Jamb bolt



Dec. 2, 1941. G. R. ADAMS y' 2,264,962

JAMB BOLT Filed Dec. 4, 1940 Patented Dec. 2, 1941 UNITED STATES PATENTOFFICE JAMB' BOLT Y George Adams, Los Angeles, Calif. ApplicationDecember 4, 1940, Serial No. 368,475.

3 Claims.

My invention relates to a jamb bolt and has for its principal object toprovide a relatively simple, practical and inexpensive bolt that iscarried by a sliding member such as a door, window, panel, screen, orthe like, and which bolt when in its projected position engages a strikemounted on the jamb of a door or Window so as to effectively retain themember in which the bolt is seated against sliding movement.

A further object of my invention is, to provide a jamb bolt thatincludes a housing in which a bolt is mounted for sliding movement andsaid bolt and housing being provided with cooperating means foryieldingly maintaining the bolt in both projected and retractedpositions.

J amb bolts constructed in accordance withmy invention are particularlyapplicable for use on doors, windows, panels, and the like, that slidetoward and away from each other in the same vertical plane and also fordoors, Windows, panels, screens, or the like, that are oiiset so as toslide past one another.

With the foregoing and other objects in view, my invention consists incertain novel features of construction and arrangement of parts thatwill be hereinafter more fully described and claimed and illustrated inthe accompanying drawing in which:

Fig. 1 is an elevational view of a jamb bolt constructed in accordancewith my invention and f showing the same applied to a sliding door.

Fig. 2 is a Vertical section taken on the line 2 2 of Fig. 1.

Fig. 3 is'a horizontal section taken on the line 3-3 of Fig. 2.

Fig. 4 is a cross section taken on the line 4-4 of Fig. 3.

Fig. 5 is a cross section taken on the line 5-5 of Fig. 3.

Fig. 6 is a horizontal section of a pair of doors arranged for slidingmovement in the same vertical plane and said doors being equipped withmy improved jamb bolts.

Fig. 7 is a horizontal section of a pair of sliding doors that areoffset so as to slide past each other and said doors being equipped withjamb bolts.

Fig. 8 is a plan view of a plurality of panels or screens arranged forsliding movement past one another and with my improved jamb boltsapplied thereto.

Fig. 9 is a sectional view similar to Fig. 3 and showing a modiiied formof the bolt.

Referring by numerals to the accompanying drawing which illustrates apreferred embodment of my invention, I0 designates a face plate,preferably formed of thin metal, and the central portion of said plateis pressed outwardly from the plane occupied by plate I0 to provide arecess II that gradually increases inv depth toward its center. n

Formed integral with and projecting outwardly from lthe center of thedepressed portion of plate- I0 and disposed at right 'angles thereto isa tubular member I2 that provides a combined housing and bearing for asliding bolt I3. The length of plate I0 is substantially greater thanthe width thereof and thus the depression Il following the shape of theplate has portions abovek and below the tubular housing I2 so as toenable the thumb and iinger to readily engage and grasp the sliding boltwhen the same is to be withdrawn for engagement with the` jamb of thedoor with which the bolt isv associated.

Tubular member I2 and the recessed portion of plate Ill are positionedin a recess Ill that is formedV in the sliding door, window or screen,Withthe at edge of the plate lying on the face of the sliding member inwhich the device is seated and the housing and plate are anchored insaid recess by means of screws I5 that pass through the ends of therecessed portion of the plate and into the door or window.

The length of bolt I3 is such that when it is at its inner limit ofmovement in the tubular member I2, the face on the outer end of saidbolt lies ush with or slightly below the outer face of the flat marginalportion of plate I0 as illustrated by solid lines in Fig. 2.

Formed in bolt I3 near its outer end is a circumferential groove I6which enables the projecting end of the bolt to be more convenientlygrasped between the thumb and ngers when the bolt is withdrawn from thetubular housing I 2.

Formed through bolt I3 near its inner end is a diametrically disposedaperture I1 and arranged to slide freely in one end of this aperture isa short pin I8 having an outer end portion I9 of reduced diameter andwhich end portion is arranged for sliding movement in a longitudinallydisposed slot 20 that is formed in the tubular housing I2. Looselyarranged in the opposite end of aperture I1 is a small spherical member2| and interposed between said member and the sliding pin I8 is a smallexpansive coil spring 22 which normally exerts outward pressure on thepin and spherical member.

Formed through the wall of the tubular housing I2 adjacent its ends andon the opposite side from slot 20 are apertures 23 that are adapted toreceive the spherical member 2l when the bolt is at the ends of itstravel, thus yieldingly retaining the bolt in both retracted andprojected positions.

The strike that is adapted to be engaged by the end of the bolt When thelatter is at its outer limit of movement comprises a disc-like plate 24of metal that is secured by means of a screw 25 or like fastening deviceto the door jamb.

The jamb bolts are arranged in sliding doors, windows, or panels, sothat when the latter are closed and the bolts are Withdrawn to theirlimit of movement, said bolts project short distances from the faces ofthe doors or Windows so that if an attempt is made to open the doors bysliding the same into their pockets, the projecting ends of the boltswill engage the strikes 24 which effectively prevents further movementof the doors into their pockets.

The sliding bolt I3 is constructed and mounted so that it may bereadilymoved lengthwiseV within its housing and the spring pressedspherical member 2| provides simple means for yieldingly retaining thebolt at both ends of its travel.

In Fig. 9 I have illustrated a form of bolt that is adaptedv to bewithdrawn to engage a strike on the door j amb and to also be movedlongitudinally through the door so that the projecting end of the boltenters an aperture A formed in a keeper K that is seated in the doorjamb, thus holding the door in which the bolt is mounted against slidingmovement in both directions. In this figure, dotted lines a show thebolt withdrawn to engage a strike on the door jamb, dotted lines bindicate the normal position of the bolt, and dotted lines c indicatethe position When the bolt is moved through the door to enter theaperture in a keeper.

Where this construction is employed, there will be three apertures suchas 23 formed in the bolt housing for receiving the spring pressed ball2|, thus yieldingly maintaining the bolt in its normal position and atthe ends of its travel through the housing and door.

Thus it will be seen that I have provided a jamb bolt that is relativelysimple in construction, inexpensive of manufacture and very effective inperforming the functions for which it is intended.

It will be understood that minor changes in the size, form andconstruction of the various parts of my improved jarnb` bolt, may bemade and substituted for those herein shown and described, withoutdeparting from the spirit of my invention, the scope of which is setforth in the appended claims.

I claim as my invention:

1. A jamb bolt comprising a housing adapted to be seated in a slidingdoor, Window, or the like, a bolt arranged for sliding movement in saidhousing, means for limiting the sliding movement of the bolt in saidhousing, means for yieldingly holding the bolt at both ends of itssliding movement, and a face plate on one end of said housing, whichface plate is recessed in order to give access to the outer end of saidbolt when the same is at its inner limit of movement.

2. In a jamb bolt, a housing having a recessed face plate and a tubularmember projecting from the recessed portion of said face plate, a boltarranged for sliding movement in the tubular portion of said housing,means for limiting the sliding movement of said bolt in said housing andmeans for yieldingly retaining said bolt at both ends of its travel.

3. A jamb bolt comprising a face plate having a recessed portion, atubular member extending from the recessed portion of the face plate, abolt arranged for sliding movement in said tubular member, there being a`circumferential groove formed in the outer portion of said bolt, a pinand slot connection between said bolt and said tubular member forlimiting the sliding movement of said bolt, there being spaced aperturesformed in said tubular member and spring pressed means carried by thebolt and adapted to engage in the apertures in said tubular member atthe ends of the travel of said bolt.

GEORGE R. ADAMIS.

